7

Electrical characteristics

This section summarizes the operating and measurement conditions, and the DC and AC characteristics of the

device. The parameters in the DC and AC characteristic tables that follow are derived from tests performed under

the measurement conditions summarized in the relevant tables. Users should check that the operating conditions

in their circuit match the measurement conditions when relying on the quoted parameters.

7.1

Absolute maximum ratings

Operation of STSAFE-A120 at ranges above the absolute maximum specifications may cause permanent device

damage. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Table 2. Absolute maximum ratings

Name

Description

Conditions

Min Typ

Max

Units

VCC ABS

Absolute maximum power supply

Pins: VCC

-0.3

-

6.5

V

VIO

Input or output voltage relative to ground

-

-0.3

-

VCC +0.3

V

VESD

Electrostatic discharge voltage according to ANSI/ESDA/

JEDEC JS-001

Human Body Model

-

6000

-

V

TA

Ambient operating temperature

-

-25

-

85

°C

TSTG

Storage temperature

-

-40

-

125

°C

TLEAD

Lead temperature during soldering(1)

-

-

-

260

°C

1. SO8N and UFDFPN8 lead temperature during soldering shall be compliant with JEDEC Std J-STD-020D (for small body,

Sn-Pb or Pb assembly), ST ECOPACK® 7191395 specification, and the European directive on restrictions on hazardous

substances (ROHS directive 2011/65/EU, July 2011).

7.2

Power supply

7.2.1

Power supply specifications

The table below provides the detailed description of the power requirements of STSAFE-A120.

Table 3. Power supply specifications

Name

Description

Conditions

Min Typ Max Units

VPOR

Power on reset voltage

-

-

-

2.05

V

VCC

Supply voltage

Considering a +/- 10% ripple on the VCC line(1) 2.7

-

5.5

V

VCC-HIPS

High power supply detection

-

5.7

6

-

V

ICC-PROC

Supply current while processing a

command

-

-

10

11.5

mA

ICC-STDBY

Standby current

IO pulled up to VCC,

TA = 25°C, 3 V

-

270

500

μA

IO pulled up to VCC,

TA = 25°C, 5 V

-

350

ICC-RESET

Supply current during

Reset

RESET = 0

Reset pin held low.

Hardware reset enabled.

TA = 105°C, 3.3 V

-

0.8

1.5

mA

1. The minimum supply voltage value of 2.7 V takes into account the ripple on the VCC line of +/- 10%.

If there is no ripple on the VCC line, the minimum supply voltage is 2.43 V and the maximum is limited by Vcc-HIPS to 5.7 V .

STSAFE-A120

Electrical characteristics

DS14609 - Rev 1

page 20/38